:root{
  --bg:#080808;
  --bg2:#0d0d0e;
  --ink:#f4f4f2;
  --muted:#a2a2a5;
  --muted2:#6c6c70;
  --line:#242426;
  --red:#d82028;
  --max:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:Arial,Helvetica,sans-serif;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit}
img{display:block;max-width:100%}
button,a{font:inherit}
.shell{width:min(calc(100% - 48px),var(--max));margin-inline:auto}
.skip-link{position:absolute;left:-9999px;top:8px;background:#fff;color:#000;padding:.65rem 1rem;z-index:100}
.skip-link:focus{left:8px}

.site-header{
  position:sticky;top:0;z-index:20;
  background:rgba(8,8,8,.975);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.05);
}
.header-inner{
  min-height:88px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:2rem;
}
.brand{display:inline-flex;text-decoration:none;align-items:center}
.brand img{width:224px;height:auto}
.site-nav{display:flex;align-items:center;gap:2rem}
.site-nav a{
  color:#b9b9bc;text-decoration:none;
  font-size:.91rem;letter-spacing:.01em;
}
.site-nav a:hover{color:#fff}
.menu-toggle{
  display:none;background:transparent;color:#fff;
  border:1px solid var(--line);border-radius:4px;
  padding:.6rem .8rem;
}

.overline{
  margin:0 0 .9rem;
  color:var(--red);
  font-size:.76rem;
  font-weight:700;
  letter-spacing:.145em;
  text-transform:uppercase;
}
h1,h2,h3{margin-top:0}
h1{
  margin-bottom:1.55rem;
  font-size:clamp(3.35rem,6.65vw,6.25rem);
  line-height:.955;
  letter-spacing:-.062em;
  font-weight:400;
}
h1 span{color:#adadb1}
h2{
  margin-bottom:1rem;
  font-size:clamp(2.1rem,4vw,3.75rem);
  line-height:1.055;
  letter-spacing:-.05em;
  font-weight:400;
}
p{margin-top:0}

.hero{
  display:grid;
  grid-template-columns:minmax(0,1.28fr) minmax(350px,.72fr);
  gap:4.6rem;
  align-items:center;
  padding-block:4rem 4.25rem;
  border-bottom:1px solid var(--line);
}
.hero-copy{max-width:910px}
.hero-lede{
  max-width:810px;
  margin-bottom:1.55rem;
  color:#b5b5b8;
  font-size:clamp(1.12rem,1.55vw,1.32rem);
  line-height:1.64;
}
.hero-lede strong{color:#fff}
.hero-actions{display:flex;align-items:center;gap:1.6rem;flex-wrap:wrap}
.primary-link,.secondary-link{
  text-decoration:none;font-size:.96rem;font-weight:700;padding-bottom:.2rem;
}
.primary-link{border-bottom:1px solid var(--red)}
.primary-link span{color:var(--red);margin-left:.35rem}
.secondary-link{color:#929297;border-bottom:1px solid #343438}

.control-diagram{
  width:min(100%,470px);
  justify-self:end;
  padding:1rem 0 1rem 2rem;
  border-left:1px solid #2e2e31;
}
.diagram-row{padding:.48rem 0}
.diagram-label{
  display:block;color:#77777c;text-transform:uppercase;
  letter-spacing:.12em;font-size:.72rem;font-weight:700;margin-bottom:.35rem;
}
.diagram-row strong{font-size:1.08rem;font-weight:400}
.diagram-path{
  position:relative;width:1px;height:42px;margin:0 0 0 13px;background:#38383c;
}
.diagram-path::after{
  content:"";position:absolute;bottom:-1px;left:-3px;
  width:7px;height:7px;border-right:1px solid #77777c;border-bottom:1px solid #77777c;
  transform:rotate(45deg);
}
.diagram-path span{
  position:absolute;top:4px;left:-3px;width:7px;height:7px;
  border-radius:50%;background:var(--red);
  animation:drop 3.4s ease-in-out infinite;
}
.supervisor-node{
  margin:0 0 0 -2rem;
  padding:1.05rem 1.2rem 1.1rem 2rem;
  border-left:3px solid var(--red);
  background:linear-gradient(90deg,rgba(216,32,40,.105),rgba(216,32,40,0));
}
.supervisor-node small{
  display:block;margin-bottom:.4rem;color:#e76066;
  font-size:.67rem;letter-spacing:.13em;
}
.supervisor-node strong{display:block;font-size:1.68rem;font-weight:400;letter-spacing:-.035em}
.supervisor-node p{margin:.3rem 0 0;color:#8f8f94;font-size:.82rem}
.evidence-return{
  margin-top:1.2rem;color:#6f6f74;font-size:.75rem;
  text-transform:uppercase;letter-spacing:.08em;
}
.evidence-return span{color:var(--red);font-size:1rem;margin-right:.4rem}

.problem-band{
  background:#0c0c0d;
  border-bottom:1px solid var(--line);
}
.problem-grid{
  display:grid;
  grid-template-columns:170px minmax(0,1fr);
  gap:2.7rem;
  align-items:start;
  padding-block:3rem;
}
.problem-grid .overline{color:#747479;margin-top:.3rem}
.problem-copy{
  margin:0;max-width:1030px;
  font-size:clamp(1.4rem,2.55vw,2.12rem);
  line-height:1.28;
  letter-spacing:-.033em;
}
.problem-copy em{font-style:normal;color:#df7075}

.section{
  padding-block:3.7rem;
  border-bottom:1px solid var(--line);
}
.section-heading{max-width:920px}
.section-heading.compact{max-width:830px}
.section-heading>p:last-child{
  max-width:790px;
  margin-bottom:0;
  color:var(--muted);
  font-size:1.1rem;
  line-height:1.66;
}

.supervisor-intro{
  display:grid;
  grid-template-columns:.95fr 1.05fr;
  gap:4.5rem;
  align-items:end;
}
.intro-copy{max-width:720px}
.intro-copy p{
  color:#a0a0a5;
  font-size:1.06rem;
  line-height:1.67;
}
.intro-copy p:last-child{margin-bottom:.1rem}

.fact-lines{
  margin-top:2.35rem;
  display:grid;
  grid-template-columns:1fr 1fr;
  border-top:1px solid var(--line);
}
.fact-lines>div{
  display:grid;
  grid-template-columns:46px 1fr;
  grid-template-rows:auto auto;
  column-gap:1rem;
  padding:1.28rem 1.6rem 1.35rem 0;
  border-bottom:1px solid var(--line);
}
.fact-lines>div:nth-child(odd){border-right:1px solid var(--line);padding-right:2.2rem}
.fact-lines>div:nth-child(even){padding-left:2.2rem}
.fact-lines span{
  grid-row:1/3;color:var(--red);
  font-size:.75rem;font-weight:700;padding-top:.15rem;
}
.fact-lines strong{font-size:1.08rem;font-weight:400;margin-bottom:.38rem}
.fact-lines p{margin:0;color:#8f8f94;font-size:.95rem;line-height:1.58}

.comparison{
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,#090909,#0b0b0c);
}
.comparison-grid{
  padding-block:3.25rem;
  display:grid;
  grid-template-columns:.8fr 1.2fr;
  gap:5rem;
  align-items:center;
}
.comparison-heading h2{margin-bottom:0}
.comparison-side{border-top:1px solid var(--line)}
.comparison-row{
  display:grid;
  grid-template-columns:170px 1fr;
  gap:2rem;
  padding:1.15rem 0 1.2rem;
  border-bottom:1px solid var(--line);
}
.comparison-row span{
  color:#77777c;
  font-size:.72rem;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:.09em;
}
.comparison-row p{margin:0;color:#8c8c91;font-size:1rem}
.supervisor-comparison{border-bottom-color:#3a1518}
.supervisor-comparison span{color:#e06b70}
.supervisor-comparison p{color:#e3e3e1}

.approach{
  background:linear-gradient(180deg,#0b0b0c,#090909);
}
.workflow{
  list-style:none;padding:0;margin:2.35rem 0 0;
  display:grid;
  grid-template-columns:repeat(6,1fr);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.workflow li{
  min-width:0;padding:1.3rem 1rem 1.4rem;
  border-right:1px solid var(--line);
}
.workflow li:last-child{border-right:0}
.workflow span{
  display:block;margin-bottom:.95rem;color:#5f5f64;
  font-size:.72rem;font-weight:700;
}
.workflow strong{display:block;font-size:1.06rem;font-weight:400;margin-bottom:.4rem}
.workflow p{margin:0;color:#85858a;font-size:.9rem;line-height:1.55}
.workflow .human-step{box-shadow:inset 0 2px 0 var(--red)}
.workflow .human-step span,.workflow .human-step strong{color:#ed767b}

.principle-grid{
  display:grid;
  grid-template-columns:.82fr 1.18fr;
  gap:4.6rem;
  align-items:start;
}
.principles{border-top:1px solid var(--line)}
.principle{
  display:grid;
  grid-template-columns:205px 1fr;
  gap:1.8rem;
  padding:1.15rem 0 1.2rem;
  border-bottom:1px solid var(--line);
}
.principle strong{font-size:1rem;font-weight:400}
.principle p{margin:0;color:#8f8f94;font-size:.94rem;line-height:1.6}

.keais-band{
  padding-block:3.7rem;
  border-bottom:1px solid var(--line);
  background:#0b0b0c;
}
.keais-grid{
  display:grid;
  grid-template-columns:.72fr 1.28fr;
  gap:4.6rem;
  align-items:center;
}
.keais-mark{
  border-right:1px solid var(--line);
  padding-right:4rem;
}
.keais-mark img{width:min(100%,430px)}
.keais-grid>div:last-child{max-width:790px}
.keais-grid p:not(.overline){
  color:#9d9da2;font-size:1.04rem;line-height:1.67;
}
.status-note{
  margin-top:1.2rem!important;
  padding-top:1.05rem;
  border-top:1px solid var(--line);
  color:#77777c!important;
  font-size:.88rem!important;
}

.contact-grid{
  display:grid;
  grid-template-columns:1fr 330px;
  gap:4.6rem;
  align-items:end;
}
.contact-grid>div:first-child{max-width:800px}
.contact-grid>div:first-child>p:last-child{
  margin-bottom:0;color:#95959a;max-width:720px;line-height:1.65;font-size:1.05rem;
}
.contact-details{
  border-top:1px solid var(--red);
  border-bottom:1px solid var(--line);
  padding:.95rem 0 1rem;
}
.contact-details span{
  display:block;color:#6f6f74;font-size:.7rem;
  text-transform:uppercase;letter-spacing:.1em;margin-bottom:.4rem;
}
.contact-details a{
  display:block;text-decoration:none;font-size:1.16rem;margin-bottom:.35rem;
}
.contact-details a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--red)}
.contact-details small{color:#66666b;font-size:.8rem}

.site-footer{padding-block:2rem}
.footer-inner{
  display:grid;grid-template-columns:auto 1fr auto;
  gap:2rem;align-items:center;
}
.footer-brand img{width:178px}
.footer-inner p{margin:0;color:#66666b;font-size:.78rem}
.footer-inner p:nth-child(2){text-align:center}

.reveal{opacity:1;transform:none}
@keyframes drop{0%,100%{transform:translateY(0);opacity:.45}50%{transform:translateY(29px);opacity:1}}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .diagram-path span{animation:none}
  .reveal{opacity:1;transform:none}
}
@media(max-width:1000px){
  .hero{grid-template-columns:1fr;gap:2.8rem;padding-block:3.8rem 4.15rem}
  .control-diagram{justify-self:start;width:min(100%,620px)}
  .supervisor-intro,.principle-grid,.keais-grid,.comparison-grid{grid-template-columns:1fr;gap:2.6rem}
  .keais-mark{border-right:0;border-bottom:1px solid var(--line);padding:0 0 2.2rem}
  .keais-mark img{width:360px}
  .workflow{grid-template-columns:repeat(3,1fr)}
  .workflow li:nth-child(3){border-right:0}
  .workflow li:nth-child(-n+3){border-bottom:1px solid var(--line)}
  .contact-grid{grid-template-columns:1fr}
}
@media(max-width:720px){
  .shell{width:min(calc(100% - 34px),var(--max))}
  .header-inner{min-height:76px}
  .brand img{width:184px}
  .menu-toggle{display:block}
  .site-nav{
    display:none;position:absolute;top:76px;left:17px;right:17px;
    background:#0d0d0f;border:1px solid var(--line);
  }
  .site-nav.open{display:grid}
  .site-nav a{padding:.9rem 1rem;border-bottom:1px solid #1a1a1c}
  .site-nav a:last-child{border-bottom:0}
  .hero{padding-block:3.25rem 3.6rem}
  h1{font-size:clamp(3rem,14vw,4.45rem)}
  .hero-lede{font-size:1.05rem}
  .control-diagram{padding-left:1.15rem}
  .problem-grid{grid-template-columns:1fr;gap:1rem;padding-block:2.7rem}
  .problem-copy{font-size:1.58rem}
  .section,.keais-band{padding-block:3.45rem}
  h2{font-size:2.4rem}
  .fact-lines{grid-template-columns:1fr;margin-top:2.25rem}
  .fact-lines>div:nth-child(odd){border-right:0;padding-right:0}
  .fact-lines>div:nth-child(even){padding-left:0}
  .comparison-grid{padding-block:3rem}
  .comparison-row{grid-template-columns:1fr;gap:.4rem}
  .workflow{grid-template-columns:1fr}
  .workflow li{border-right:0!important;border-bottom:1px solid var(--line)!important}
  .workflow li:last-child{border-bottom:0!important}
  .principle{grid-template-columns:1fr;gap:.4rem}
  .keais-mark img{width:285px}
  .contact-grid{gap:2rem}
  .contact-details{width:100%}
  .footer-inner{grid-template-columns:1fr;gap:.6rem}
  .footer-inner p:nth-child(2){text-align:left}
}


/* v5 readability pass */
body { font-size: 17px; }

.diagram-row strong { line-height: 1.45; }
.supervisor-node p { line-height: 1.45; }

.fact-lines p,
.principle p,
.workflow p,
.comparison-row p,
.contact-grid > div:first-child > p:last-child,
.keais-grid p:not(.overline),
.intro-copy p {
  text-wrap: pretty;
}

.fact-lines > div {
  min-height: 138px;
}

.workflow li {
  min-height: 178px;
}

@media (max-width: 1000px) {
  body { font-size: 16.5px; }
  .workflow li { min-height: 0; }
  .fact-lines > div { min-height: 0; }
}

@media (max-width: 720px) {
  body { font-size: 16px; }
  .overline { font-size: .72rem; }
  .hero-lede { line-height: 1.62; }
}


/* v6: deterministic static/print rendering.
   Content is never hidden merely because it has not entered the viewport. */
@media print {
  .reveal {
    opacity: 1 !important;
    transform: none !important;
  }

  .diagram-path span {
    animation: none !important;
  }

  .site-header {
    position: static;
    backdrop-filter: none;
  }
}